Malicious PDF — malware analysis report

Static analysis result for SHA-256 09e60d9e41ff8795…

MALICIOUS

PDF

80.4 KB Created: 2021-03-01 22:11:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 543a8318eaf15f432d46a491e976ae9b SHA-1: d31db1d398a4b18d12ad075c0b4cfe4fc837d610 SHA-256: 09e60d9e41ff87951b9771bfce86cbc6cc669bdf228358e02908237def02fdf3
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The sample was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains numerous embedded URLs pointing to various domains, suggesting a link farm or phishing infrastructure. The PDF structure and embedded content, despite being heavily obfuscated, are consistent with phishing lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ponafet.ru/strik?utm_term=vivitar+lenses+any+good PDF link annotation
    • http://mumolazesinidix.getenjoyment.net/what_are_the_osha_requirements_for_ladder.pdfIn PDF document text
    • http://pixunune.sportsontheweb.net/57894228092.pdfIn PDF document text
    • https://cdn.sqhk.co/wugunifikezu/jhbBieY/13829750772.pdfIn PDF document text
    • http://fekevopimibun.sportsontheweb.net/walgreens_cool_mist_humidifier_2065_manual.pdfIn PDF document text
    • http://kirakexig.mypressonline.com/dilezazizazowufo.pdfIn PDF document text
    • http://sozaxesugoj.mywebcommunity.org/pasimifoxidep.pdfIn PDF document text
    • http://zememor.sportsontheweb.net/work_from_home_software_development_jobs_in_bangalore.pdfIn PDF document text
    • https://cdn.sqhk.co/lonuxonemor/bieOqgx/rikaguxanukimukizokipo.pdfIn PDF document text
    • https://cdn.sqhk.co/ruvonusebex/hbbhghd/fishing_hook_size_guide_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/pozazoji/yiihfje/37475468909.pdfIn PDF document text
    • https://cdn.sqhk.co/nuzitomizaj/dif6iig/beli_pulsa_di_gojek.pdfIn PDF document text
    • http://majikok.mygamesonline.org/84853339082.pdfIn PDF document text
    • https://cdn.sqhk.co/putizimetiwe/yqihfhd/latest_bollywood_ringtone_free_download_2019.pdfIn PDF document text
    • http://rexevivejegox.scienceontheweb.net/wanebukisub.pdfIn PDF document text
    • https://cdn.sqhk.co/rogolafu/Dlhcosd/gowiretuxobebemidaxuzupu.pdfIn PDF document text
    • http://kiritisivasol.mywebcommunity.org/kegigaputubef.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rawigukegopafot.onlinewebshop.net/duvuvenatu.pdfIn PDF document text
    • http://pimobepetokonud.myartsonline.com/vitusarulevovite.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001000e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1000E 5120 bytes
SHA-256: 7be86d43d180bd3f2bb64efb02bf111358954914e1f0214aab7d2e2111036390
font_01_sfnt_off00011194.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11194 10176 bytes
SHA-256: 49b8417514d78bf91f36643ad0e021ef9058c254e0f7b806098aa765dc572688

Open this report in the interactive analyzer, or submit your own file for analysis.